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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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Driving in mud!!Views : 863 Replies : 11Users Viewing This Thread : |
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Jul 29th, 2019, 19:54 | #1 |
Yoorkshireman
Last Online: Feb 9th, 2021 23:14
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Location: Beverley
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Driving in mud!!
Have just been to Carfest North and had great fun getting out of car park, many cars stuck in mud after 3 days of rain... My V70 geartronic really impressed me, put in D and floored it, the traction control completely took over and kept us moving at a few mph, revs sat at 1500 most of time and on summer tyres, obvs an XC70 would have found it a breeze but for a heavy FWD car I was impressed... BMWs and Mercs were really struggling. Out of interest, what is the recommended driving technique in adverse conditions for FWD geartronics?
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Jul 30th, 2019, 01:01 | #2 | |
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Quote:
Much like driving in snow you want to be in a higher gear so use the Geartronic to select 2nd gear rather than 1st to keep revs low.
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Jul 30th, 2019, 22:50 | #4 |
Bungling Amateur
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In thick mud and other viscous surfaces like snow and sand sometimes it's better to turn off DSTC and allow a bit of spin - this is the "spin control" only and disables the systems ability to reduce engine power. Other aspects of traction control still function.
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
Jul 30th, 2019, 22:50 | #5 |
Bungling Amateur
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The "W" button on the old 5 speed auto's used to do that - select 3rd for setting off.
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
Aug 9th, 2019, 10:36 | #6 | |
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Quote:
Geartronic don't need any W button, as you simply select the gear you want manually in the normal way. It's only when you are sinking in soft ground (gravel, snow) that it pays to turn off anti-spin. With it on, you'll not move. With it off, you'll either move or sink deeper. You never know which until afterwards. When there's a thin layer of mud on reasonably firm surfaces, keep it on. |
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Aug 9th, 2019, 20:26 | #7 |
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Tyres will have far more effect than gizmos.
A tyre full of mud has no grip, spinning the wheel may throw some of it out of the tread but if it's not self clearing it's not gripping. Road tyres, All terrain tyres and Mud terrain tyres all have differing grip characteristics in mud and no matter what the tyre once the grip is gone you are not moving. Things like traction control can help , but traction controll and blocked road tyres still mean you are stuck, and not all tyres are equal even of the same type. I have found BF Goodrich ATs far better than Cooper ATs for grip in mud as they clear better. Whatever tyres are fitted momentum plays a big part in how far you get. Paul. |
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Aug 10th, 2019, 07:46 | #8 | |
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Modern cars frustrate me at times like this, there are lots of systems and electronics that can’t be fully turned off, I never feel in full control...
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Aug 10th, 2019, 13:08 | #9 |
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No, DSTC (Dynamic Stability and Traction Control) can't be fully turned off. But it still has two modes, on (which is default) and off.
DSTC consists of three components.
There has never been any model where TRACS, STC or DSTC couldn't be turned more or less off. It's just a question about figuring out how. For the V70 2011 referred to above, it was done using the ring and button on the turn indicator stalk. In later models via the menu system under MY CAR. Earlier models had a button labeled TRACS, STC or DSTC, depending on model. Last edited by apersson850; Aug 10th, 2019 at 13:21. |
Aug 15th, 2019, 12:14 | #10 |
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As above, tyres make the biggest difference. My XC70 came with some (admittedly rather good/sticky) road tyres as it spent its life going up/down M11 for the police. However, last year's snow and despite AWD it could not even get up the slight incline away from my house. Switched them out for all-weather M&S and this year absolutely no problem in the snow, as much grip as needed and I was driving up much steeper hills without slipping.
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